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Proceedings Paper

Wind Evaluation Breadboard: mechanical design and analysis, control architecture, dynamic model, and performance simulation
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Paper Abstract

The Wind Evaluation Breadboard (WEB) for the European Extremely Large Telescope (ELT) is a primary mirror and telescope simulator formed by seven segments simulators, including position sensors, electromechanical support systems and support structures. The purpose of the WEB is to evaluate the performance of the control of wind buffeting disturbance on ELT segmented mirrors using an electro-mechanical set-up which simulates the real operational constrains applied to large segmented mirrors. The instrument has been designed and developed by IAC, ALTRAN, JUPASA and ESO, with FOGALE responsible of the Edge Sensors, and TNO of the Position Actuators. This paper describes the mechanical design and analysis, the control architecture, the dynamic model generated based on the Finite Element Model and the close loop performance achieved in simulations. A comparison in control performance between segments modal control and actuators local control is also presented.

Paper Details

Date Published: 17 July 2008
PDF: 12 pages
Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70120X (17 July 2008); doi: 10.1117/12.789562
Show Author Affiliations
Marcos Reyes García-Talavera, Instituto de Astrofísica de Canarias (Spain)
Teodora Viera, Instituto de Astrofísica de Canarias (Spain)
Miguel Núñez, Instituto de Astrofísica de Canarias (Spain)
Pablo Zuluaga, Instituto de Astrofísica de Canarias (Spain)
ALTRAN Technologies (Spain)
Bernardo Ronquillo, ALTRAN Technologies (Spain)
Mariano Ronquillo, ALTRAN Technologies (Spain)
Enzo Brunetto, ESO (Germany)
Marco Quattri, ESO (Germany)
Javier Castro, Grantecan S.A. (Spain)
Elvio Hernández, Instituto de Astrofísica de Canarias (Spain)

Published in SPIE Proceedings Vol. 7012:
Ground-based and Airborne Telescopes II
Larry M. Stepp; Roberto Gilmozzi, Editor(s)

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